# How many atoms are in 39.1 g of C_6H_12O_6?

Jun 15, 2018

Well what is the molar mass of sugar?

#### Explanation:

We got a molar quantity of $\frac{39.1 \cdot g}{180.16 \cdot g \cdot m o {l}^{-} 1} = 0.217 \cdot m o l$...

Now clearly, there are 24 atoms per molecule of glucose...and $6.022 \times {10}^{23} \cdot \text{atoms} \cdot m o {l}^{-} 1. . .$

And so we take the product....

$6.022 \times {10}^{23} \cdot m o {l}^{-} 1 \times 0.217 \cdot m o l \times 24 = 3.14 \times {10}^{24} \cdot \text{atoms} .$